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package myapp.util;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.sql.DataSource;
/**
*
* @author jagadish
*/
public class TablesUtil {
public static void createTables(DataSource ds1, PrintWriter out, String tableName, String columnName) {
Connection con = null;
Statement stmt = null;
try {
con = ds1.getConnection();
stmt = con.createStatement();
String query = "create table " + tableName + "(" + columnName + " char(50))";
stmt.executeUpdate(query);
} catch (Exception e) {
HtmlUtil.printException(e, out);
} finally {
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception e) {
HtmlUtil.printException(e, out);
}
try {
if (con != null) {
con.close();
}
} catch (Exception e) {
HtmlUtil.printException(e, out);
}
}
}
public static void deleteTables(DataSource ds1, PrintWriter out, String tableName) {
Connection con = null;
Statement stmt = null;
try {
con = ds1.getConnection();
stmt = con.createStatement();
stmt.executeUpdate("drop table " + tableName);
} catch (Exception e) {
HtmlUtil.printException(e, out);
} finally {
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception e) {
HtmlUtil.printException(e, out);
}
try {
if (con != null) {
con.close();
}
} catch (Exception e) {
HtmlUtil.printException(e, out);
}
}
}
public static boolean verifyTableContent(DataSource ds1, PrintWriter out, String tableName, String columnName, String content) {
Connection con = null;
Statement stmt = null;
ResultSet rs = null;
boolean result = false;
try {
con = ds1.getConnection();
stmt = con.createStatement();
rs = stmt.executeQuery("select count(*) ROW_COUNT from " + tableName + " where " + columnName + " = '" + content + "'");
if (rs.next()) {
if (rs.getInt("ROW_COUNT") > 0) {
result = true;
}
}
} catch (Exception e) {
HtmlUtil.printException(e, out);
} finally {
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception e) {
HtmlUtil.printException(e, out);
}
try {
if (con != null) {
con.close();
}
} catch (Exception e) {
HtmlUtil.printException(e, out);
}
return result;
}
}
}